American Association of State Highway and Transportation Officials, United States. Federal Highway Administration, & Barker, R. M. (1991). Manuals for the design of bridge foundations: Shallow foundations, driven piles, retaining walls and abutments, drilled shafts, estimating tolerable movements, load factor design specifications, and commentary. Transportation Research Board.
芝加哥风格引文American Association of State Highway and Transportation Officials, United States. Federal Highway Administration, 与 R. M. Barker. Manuals for the Design of Bridge Foundations: Shallow Foundations, Driven Piles, Retaining Walls and Abutments, Drilled Shafts, Estimating Tolerable Movements, Load Factor Design Specifications, and Commentary. Washington, D.C: Transportation Research Board, 1991.
MLA引文American Association of State Highway and Transportation Officials, et al. Manuals for the Design of Bridge Foundations: Shallow Foundations, Driven Piles, Retaining Walls and Abutments, Drilled Shafts, Estimating Tolerable Movements, Load Factor Design Specifications, and Commentary. Transportation Research Board, 1991.